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High-Repetition-Rate MHz Acoustooptic Q -Switched Fiber Laser

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10 Author(s)
Hongming Zhao ; Shanghai Inst. of Opt. & Fine Mech., Shanghai ; Qihong Lou ; Jun Zhou ; Fangpei Zhang
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A simple actively Q-switched double-clad fiber laser combining an amplifying cavity is reported by using a dynamic acoustooptic Q-switching as a beam splitter. Sub-100-ns pulses independence of the repetition rate of acoustooptic modulator are almost changeless with repetition rate varied from 50 kHz to 1.5 MHz. With 4.5-W absorbed power, 9.4-W peak-power pulses at 1.5-MHz repetition rate with 75-ns pulse duration are generated.

Published in:

Photonics Technology Letters, IEEE  (Volume:20 ,  Issue: 12 )